Side by side

Longines PrimaLuna MoonphasevsMaen Grand Tonneau Ultra Thin

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

PrimaLuna Moonphase
LonginesPrimaLuna Moonphase
MSRP $2,950
Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519

At a glance

21 of 29 specs differ
Diameter
PrimaLuna Moonphase34mm
Grand Tonneau Ultra Thin34mm
Power Reserve
PrimaLuna Moonphase72h
Grand Tonneau Ultra Thin40h
Water Resistance
PrimaLuna Moonphase30m
Grand Tonneau Ultra Thin50m
MSRP
PrimaLuna Moonphase$2,950
Grand Tonneau Ultra Thin$1,519

Full specifications

Case

8 specs
Category
Moonphase
Dress
Thickness
11.6mm
6.4mm
Lug-to-Lug
41mm
Lug Width
8mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
50m
Caseback
Transparent case back with sapphire crystal
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Both sides
Inner
Dial Color
Blue
MNL.04
Indices
Diamond indexes
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
L899.5
Beat Rate
25,200 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date, Moon phase display at 6 o'clock
None

Pricing

1 specs
MSRP
$2,950
$1,519

Follow this matchup

Get a note when Longines PrimaLuna Moonphase vs Maen Grand Tonneau Ultra Thin gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Longines PrimaLuna Moonphase

The Longines PrimaLuna Moonphase features a fluid case design and a 72-hour power reserve from its automatic movement. Owners note its accuracy averages 1.3 seconds lost per day across six positions, and 3 to 4 seconds on the wrist, performing within COSC standards. Previously, moon phase models utilized quartz movements, a detail that may not appeal to mechanical watch enthusiasts. Overall, owners rate the Longines PrimaLuna Moonphase highly for its updated automatic movement and reliable timekeeping.

Maen Grand Tonneau Ultra Thin

Owners widely report the Maen Grand Tonneau Ultra Thin features a La Joux-Perret D101 manual-wind movement and a double-layer enamel dial. Some owners criticize the bracelet design and find the dial too small and lacking indices. One owner describes the Maen Grand Tonneau Ultra Thin as "hideous with a good movement." On balance, owners are divided on the Maen Grand Tonneau Ultra Thin, with some appreciating its movement and dial while others find its design unappealing.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.